Assignee
NIEHOFF & CO C E
US·55 granted patents·6 pending applications·1,915 citations·filing 1974–2024
Top patents by PatentIndex Score
61 records- 0196US6373230B2Alternator with regulation of multiple voltage outputsNIEHOFF & CO C E·Filed 2001·Granted Apr 16, 2002·62 cites·11 claims
- 0295US7635922B2Power control system and methodNIEHOFF & CO C E·Filed 2006·Granted Dec 22, 2009·979 cites·32 claims
- 0393US6275012B1Alternator with regulation of multiple voltage outputsNIEHOFF & CO C E·Filed 1999·Granted Aug 14, 2001·69 cites·12 claims
- 0492US7576519B2System and method for electric current and power monitoring and control of a generatorNIEHOFF & CO C E·Filed 2008·Granted Aug 18, 2009·17 cites·19 claims
- 0591US6184661B1Regulator with alternator output current and input drive power controlNIEHOFF & CO C E·Filed 1999·Granted Feb 6, 2001·78 cites·19 claims
- 0688USD618615SElectric generatorNIEHOFF & CO C E·Filed 2009·Granted Jun 29, 2010·40 cites·1 claims
- 0788US7466107B2System and method for electric current and power monitoring and control of a generatorNIEHOFF & CO C E·Filed 2006·Granted Dec 16, 2008·13 cites·26 claims
- 0888US7397224B2Voltage regulator with improved protection and warning systemNIEHOFF & CO C E·Filed 2007·Granted Jul 8, 2008·14 cites·21 claims
- 0987US7432613B2Self-protective high-current low-loss bi-directional semiconductor switch module and method of operationNIEHOFF & CO C E·Filed 2005·Granted Oct 7, 2008·17 cites·42 claims
- 1086USD574325SElectrical alternatorNIEHOFF & CO C E·Filed 2006·Granted Aug 5, 2008·39 cites·1 claims
- 1183US7944185B2Power control system and methodNIEHOFF & CO C E·Filed 2009·Granted May 17, 2011·10 cites·31 claims
- 1283US7808119B2Power control system and methodNIEHOFF & CO C E·Filed 2009·Granted Oct 5, 2010·10 cites·20 claims
- 1383US7804279B2Power control system and methodNIEHOFF & CO C E·Filed 2009·Granted Sep 28, 2010·10 cites·20 claims
- 1481US6924621B2System and method for controlling electric load and battery charge in a vehicleNIEHOFF & CO C E·Filed 2002·Granted Aug 2, 2005·52 cites·28 claims
- 1581USD425020SElectrical alternatorNIEHOFF & CO C E·Filed 1996·Granted May 16, 2000·35 cites·1 claims
- 1680US7605494B2System and method for electrical energy switching and control in a vehicleNIEHOFF & CO C E·Filed 2007·Granted Oct 20, 2009·13 cites·21 claims
- 1780US6452363B1Multiple battery charge equalizerNIEHOFF & CO C E·Filed 2000·Granted Sep 17, 2002·45 cites·9 claims
- 1880USD398285SElectrical alternatorNIEHOFF & CO C E·Filed 1997·Granted Sep 15, 1998·26 cites·1 claims
- 1979US10770914B2Dual control loop for charging of batteriesNIEHOFF & CO C E·Filed 2018·Granted Sep 8, 2020·5 cites·20 claims
- 2078US7688040B2System and method for electric current and power monitoring and control of a generatorNIEHOFF & CO C E·Filed 2009·Granted Mar 30, 2010·6 cites·9 claims
- 2178US7598713B2System and method for electric current and power monitor and control of a generatorNIEHOFF & CO C E·Filed 2008·Granted Oct 6, 2009·6 cites·6 claims
- 2275US7804181B2Power control system and methodNIEHOFF & CO C E·Filed 2009·Granted Sep 28, 2010·6 cites·20 claims
- 2374US7615972B2System and method for electric current and power monitoring and control of a generatorNIEHOFF & CO C E·Filed 2008·Granted Nov 10, 2009·5 cites·20 claims
- 2474US6489753B1System and method for monitoring battery equalizationNIEHOFF & CO C E·Filed 2001·Granted Dec 3, 2002·33 cites·12 claims
- 2573US5907233AVoltage regulator with improved field coil current control system and warning systemNIEHOFF & CO C E·Filed 1997·Granted May 25, 1999·33 cites·17 claims
- 2672US7397147B2System and method for electrical energy switching and control in a vehicleNIEHOFF & CO C E·Filed 2007·Granted Jul 8, 2008·8 cites·20 claims
- 2771USD548696SElectrical alternatorNIEHOFF & CO C E·Filed 2005·Granted Aug 14, 2007·19 cites·1 claims
- 2870US11811248B2Vehicle generator using battery charging profilesNIEHOFF & CO C E·Filed 2016·Granted Nov 7, 2023·3 cites·20 claims
- 2969US7692413B2Power control system and methodNIEHOFF & CO C E·Filed 2008·Granted Apr 6, 2010·4 cites·17 claims
- 3069USD571291SMotorized actuatorNIEHOFF & CO C E·Filed 2007·Granted Jun 17, 2008·16 cites·1 claims
- 3168US7944186B2Power control system and methodNIEHOFF & CO C E·Filed 2009·Granted May 17, 2011·4 cites·20 claims
- 3268USD618170SElectric generatorNIEHOFF & CO C E·Filed 2009·Granted Jun 22, 2010·15 cites·1 claims
- 3368USD587194SElectrical alternatorNIEHOFF & CO C E·Filed 2008·Granted Feb 24, 2009·16 cites·1 claims
- 3468USD398286SElectrical alternatorNIEHOFF & CO C E·Filed 1997·Granted Sep 15, 1998·20 cites·1 claims
- 3567US7812574B2Power control system and methodNIEHOFF & CO C E·Filed 2009·Granted Oct 12, 2010·4 cites·20 claims
- 3667US7750489B2Power control system and methodNIEHOFF & CO C E·Filed 2009·Granted Jul 6, 2010·4 cites·46 claims
- 3767USD563871SElectrical alternatorNIEHOFF & CO C E·Filed 2006·Granted Mar 11, 2008·17 cites·1 claims
- 3867US7157806B2System and method for controlling and distributing electrical energy in a vehicleNIEHOFF & CO C E·Filed 2004·Granted Jan 2, 2007·22 cites·75 claims
- 3966USD563870SElectrical alternatorNIEHOFF & CO C E·Filed 2006·Granted Mar 11, 2008·16 cites·1 claims
- 4066US3931546AOver-voltage protection circuitNIEHOFF & CO C E·Filed 1974·Granted Jan 6, 1976·19 cites·12 claims
- 4165USD773995SElectric generatorNIEHOFF & CO C E·Filed 2015·Granted Dec 13, 2016·14 cites·1 claims
- 4265USD610088SElectrical alternatorNIEHOFF & CO C E·Filed 2008·Granted Feb 16, 2010·16 cites·1 claims
- 4362US3943408AOver-voltage protection circuit for wye connected electric machineNIEHOFF & CO C E·Filed 1974·Granted Mar 9, 1976·16 cites·16 claims
- 4461US7352157B2Voltage regulator with improved protection and warning systemNIEHOFF & CO C E·Filed 2007·Granted Apr 1, 2008·3 cites·32 claims
- 4559US12476452B2Multi-voltage capacitive filter protection circuitNIEHOFF & CO C E·Filed 2023·Granted Nov 18, 2025·0 cites·20 claims
- 4656USD705165SElectric generatorNIEHOFF & CO C E·Filed 2013·Granted May 20, 2014·11 cites·1 claims
- 4755US7276804B2Voltage regulator with improved protection and warning systemNIEHOFF & CO C E·Filed 2005·Granted Oct 2, 2007·2 cites·38 claims
- 4854USD680493SElectric generatorNIEHOFF & CO C E·Filed 2012·Granted Apr 23, 2013·9 cites·1 claims
- 4954US7202574B2System and method for electrical energy switching and control in a vehicleNIEHOFF & CO C E·Filed 2004·Granted Apr 10, 2007·8 cites·37 claims
- 5053US7688039B2System and method for electric current and power monitoring and control of a generatorNIEHOFF & CO C E·Filed 2009·Granted Mar 30, 2010·1 cites·10 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
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